| Nick_Adams |
| (.300 member) |
| 08/03/25 04:34 AM |
Re: A Custom built 350 Rem Mag - Leonard Mews Mannlicher Stock
|
Quote:
Hello Nick,
I really like the 600s. I have one in 350 RM, one in 6.5 RM, one in 222, one in 30-30, and one in 35 REM. I sold my 600 in rare .223 caliber because it was too valuable to keep.
As my post above shows, the custom on the O3-A3 action allows for longer cartridges and the chamber has a deep throat to allow for heavier bullets seated longer.
Yes, there were long-action rifles chambered in .350RM and, as you stated, they allow for a "long-loaded" cartridge unrestricted by the 600's/660's 2.800" COAL.
A good source for obtaining load data with longer-seated bullets is the .350RM chapter in Ken Waters' "Pet Loads" tome. He was developing and chronographing loads using an early Ruger M77. It had rifle sights and was scoped. Barrel was 22", IIRC. Waters developed some very accurate and very fast loads.